hitachi — I. MISCELLANEOUS

MAINTENANCE Loosen the Track CAUTION: Do not loosen valve (1) quickly or loosen it too much as high-pressure grease in the adjusting cylinder may spout out. Loosen carefully, keeping body parts and face away from valve (1). Never loosen grease fitting (2). 1 2 IMPORTANT: When gravel or mud is packed between sprockets and track links, remove it before loosening. 1. To loosen the track, slowly turn valve (1) counterclock- wise using long socket 24; grease will escape from the grease outlet. M116-07-093 1 2. Between 1 to 1.5 turns of valve (1) is sufficient to loosen the track. 2 3. If grease does not drain smoothly, slowly rotate the raised track. 4.

When proper track sag is obtained, turn valve (1) clock- wise and tighten to 90 N•m (9.2 kgf•m, 67 lbf•ft). Tighten the Track CAUTION: It is abnormal if the track remains tight af- ter turning valve (1) counterclockwise or if the track is still loose after charging grease to fitting (2). In such cases, NEVER ATTEMPT TO DISASSEMBLE the track or track adjuster, because of dangerous high-pressure grease inside the track adjuster. See your authorized dealer immediately. Grease Outlet M16J-07-083 To tighten the track, connect a grease gun to grease fitting (2) and add grease until the sag is within specifications. 2 M16J-07-083 7-85